I'm here to hopefully clue you in on what is a very unique event and is surely one that will provide for some wonderfully immersive experiences. This weekend -- October 19-20, 2013 -- the Chicago Architecture Foundation is presenting Open House Chicago, a free public festival offering behind-the-scene access to 150 buildings across the city. For Chicago residents and tourists alike it presents a wonderful opportunity to explore parts of the city that would otherwise be inaccessible.
So, as they say... 150 cool places. 48 hours. Go.